Update FlutterWebView.java

packages/webview_flutter/android/src/main/java/io/flutter/plugins/webviewflutter/FlutterWebView.java

@@ -28,6 +28,7 @@ public class FlutterWebView implements PlatformView, MethodCallHandler {
   private final MethodChannel methodChannel;
   private final FlutterWebViewClient flutterWebViewClient;
   private final Handler platformThreadHandler;
+  private String baseUrl;
 
   @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
   @SuppressWarnings("unchecked")
@@ -68,7 +69,7 @@ public class FlutterWebView implements PlatformView, MethodCallHandler {
     if (params.containsKey("html")) {
       String html = (String) params.get("html");
       if (params.containsKey("baseUrl")) {
-        String baseUrl = (String) params.get("baseUrl");
+        baseUrl = (String) params.get("baseUrl");
         webView.loadDataWithBaseURL(baseUrl, html, "text/html", "UTF-8", null);
       } else {
         webView.loadData(html, "text/html", "UTF-8");
@@ -130,6 +131,9 @@ public void onMethodCall(MethodCall methodCall, Result result) {
       case "loadUrl":
         loadUrl(methodCall, result);
         break;
+      case "loadHtml":
+        loadHtml(methodCall, result);
+        break;
       case "updateSettings":
         updateSettings(methodCall, result);
         break;
@@ -195,6 +199,20 @@ private void loadUrl(MethodCall methodCall, Result result) {
     result.success(null);
   }
 
+  @SuppressWarnings("unchecked")
+  private void loadHtml(MethodCall methodCall, Result result) {
+    Map<String, Object> request = (Map<String, Object>) methodCall.arguments;
+    String html = (String) request.get("html");
+    if (html != null) {
+      if (baseUrl != null) {
+        webView.loadDataWithBaseURL(baseUrl, html, "text/html", "UTF-8", null);
+      } else {
+        webView.loadData(html, "text/html", "UTF-8");
+      }
+    }
+    result.success(null);
+  }
+
   private void canGoBack(Result result) {
     result.success(webView.canGoBack());
   }